This claims to be new and groundbreaking but I assure you it isn't. From a recovering food studies guy this so reinvents the wheel that I'm freshly reminded why I got out of it.
The big conclusion is “You are what you eat”—something that we've been saying to ourselves since the Romantic period (the phrase was invented twice, separately, like all good things, once in France and once in Germany). Stir in some Lacan (your identity is looped through your jouissance) and you have the recipe for things as they are.
This is precisely what we need LESS of, not more. It turns eating into fetishistic identity politics and it's a big reason for anorexia and the kind of beautiful soul environmentalism against which I've been arguing.